45003631531 has 16 divisors (see below), whose sum is σ = 48540902400. Its totient is φ = 41569925760.

The previous prime is 45003631529. The next prime is 45003631549. The reversal of 45003631531 is 13513630054.

It is not a de Polignac number, because 45003631531 - 2¹ = 45003631529 is a prime.

It is a super-2 number, since 2×45003631531² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45003631493 and 45003631502.

It is not an unprimeable number, because it can be changed into a prime (45003631501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235770 + ... + 381568.

It is an arithmetic number, because the mean of its divisors is an integer number (3033806400).

Almost surely, 2^45003631531 is an apocalyptic number.

45003631531 is a deficient number, since it is larger than the sum of its proper divisors (3537270869).

45003631531 is a wasteful number, since it uses less digits than its factorization.

45003631531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146154.

The product of its (nonzero) digits is 16200, while the sum is 31.

The spelling of 45003631531 in words is "forty-five billion, three million, six hundred thirty-one thousand, five hundred thirty-one".